Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 376
allowed to do so, form a realimage J^-^Qy I^^t a concavelens -£, placed in its way,diverges the rays so that onentering the eye they seemto come from /;</. This imageis erect and virtual. This instrument is alsoknown as Galileos telescope.It was devised by this great man, and with it he… … FiQ. 438.—A section of the ordinary opera glass. 366 OPTICAL INSTRUMENTS convenient length and give an image right-side-up, hut their field ofview is not very great and they are not very serviceable for highmagnification. 420. Terrestrial Telescope. Wlien an ordinary telescope is tobe used for…
Physics
Internet Archive · Western University Libraries · Public Domain Mark 1.0. Free to use for anything.
